Department of Clinical Laboratory, Kyoto University Hospital

[1011 / 4B035]
Japanese
 
Ver.16
4.Endocrinological Test >> 4B.Thyroid Hormones and Their Bindind Protein>>4B035 free thyroxine

free thyroxine

[serum]

JAB

Standard Code (JLAC10)

1 Analyte4B035free thyroxine
Identification0000
Specimen023serum
Method052chemiluminescent enzyme immunoassay (CLEIA)
Result Identifying 0100

ISO15189 Applied Scope of Accreditation

RML00280 Non-Basic Series (October 26, 2019 revised)
Free thyroxine (FT4)
Medical Laboratory Accreditation Certificate
Japan Accreditation Board

Specimen

Top Colour Collected Sample Quantity Measured Material Required
HotPink Top blood 6 mL serum

Specimen Rejection Criteria

haemolysis 
clotted 
lipaemia 
inappropriate sample volumereject
wrong containerreject
urine samples without the appropriate preservative 
received ambient 
unprotected from light 
opening tubes 
incterus 

Specimen Stability Information

Specimen Type Container Temperature Stability
serum Ambient 5 days
Refrigerated 7 days
Frozen 30 days

Turnaround Time (TAT)

same day / 1 to 2 days

Laboratory

Central Laboratoryweekday (8:30 a.m. - 5:00 p.m.)
night time or weekend

Reference Value

Period / Age
Specimenblood
Methodelectro chemiluminescent immunoassay (ECLIA)
  MaleFemaleUnit
00free thyroxine0.88 - 1.620.88 - 1.62ng/dL
Specimenblood
Methodchemiluminescent enzyme immunoassay (CLEIA)
  MaleFemaleUnit
00free thyroxine0.88 - 1.620.88 - 1.62ng/dL
Specimenblood
Methodelectro chemiluminescent immunoassay (ECLIA)
  MaleFemaleUnit
00free thyroxine0.880 - 1.6200.880 - 1.620ng/dL
Specimenblood
Method 
  MaleFemaleUnit
00free thyroxine0.82 - 1.630.82 - 1.63ng/dL
Specimen
Method
  MaleFemaleUnit
Specimen
Method
  MaleFemaleUnit
Specimen
Method
  MaleFemaleUnit
Specimen
Method
  MaleFemaleUnit

Critical Value

High Value Low Value
Kyoto University Hospital
Kyoto University